Spinning-spindle.



PATENTED Nov. 29, 1904.'

G. o. DRAPR.

SPINNING SPINDLE.

. PPLIUATIOH ILBD AUG.1, 1904.

H0 MODEL.

j Mw

UNITED STATES Patented November-29, 1904.

PATENT OEEICE.

GEORGE OTIS DRAFER, OF HOPEDALE, MASSACHUSETTS, ASSlG-NOR TO SAWYERSPINDLE COMPANY, A OORPORATlON OF MAINE.

SPINNING-SFlNDLE..

SPECIFICATION forming part of Letters Patent No. 776,122, dated November29, 1904.

Application led August l, 1904.

To all whom llt may concern.-

Be it known that I, Geenen Oris DRArEn, a citizen of the United States,and a resident of Hopedale, county of Worcester, State of Massachusetts,have invented an Improvement in Spinning-Spindles, of which thefollowing description, in connection with the accompanying drawings, isa speciiication, like characters on the drawings representing' likeparts.

This invention has for its object the production of a novel bearing forspinning-spindles of the type wherein the tapering pintle of the spindleis supported in the correspondingly-tapered bore of a bolster, suitablysustained in a bolster-case adapted to be secured to the spindle-rail.

ln my present invention the bolster is maintained under the control of aspring under tension, permitting the spindle to run without vibration orjarring at very high speeds and with unbalanced loads. Means are alsoprovided for regulating or adjusting the iit of the spindle-pintle inthebolster and for varying' the tension of the bolster-controlling spring.

The various novel features of my invention as contained in one practicalembodiment thereof will be fully described in the subjoinedspecification and particularly pointed out in the following claims.

Figure 1 is a vertical sectionalview and part elevation of aspinning-spindle embodying one form of my invention. Figs. 2 and 3 areside elevations of the bolster, connected spindle-step, and thesuspension connection for the bolster removed from the bolster-case, theparts in Fig. 3 being turned one-quarter around from the position shownin Fig. 2 and with the suspension connection partly broken out and insection; and Fig. 1 is a detail in section of the bottom of the bolstercase viewed at right angles to Fig. 1.

Referring to Fig. 1, the spindle S, having' a tapering pintle S andprovided with a sleevewhirl W, the bolster-case B, adapted to be clampedas usual to the spindle-rail by a nut BX, and the downhold w for thewhirl may be and are all substantially of well-known construction. Theupturned end b of the bolster-case is provided with one or more notchesSerial No- 2l8,992. KNO model.)

, and surrounding the lower part of such up turned end is a circularwall Z2, and the chamber formed thereby communicates at 3 with theoil-reservoir b1, which, as will be noted, is quite low down.

In the present embodiment of my invention the oil has a tendency to runover the top of the bolster, and when it runs down outside the upper endof the bolster-case it falls within the wall or guard L and is returnedthrough the opening b3 to the reservoir and the interior of thebolster-case. The whirl is provided with a petticoat w, which extendsdown within and below the top of the guard b2, so that the oil cannot bethrown outward.

IThe bolster' 1, having a tapering bore 2 to receive the spindle-pintleand provided with oil-holes 3, has a coarse screw-thread 4 formed on itsupper end, while a longitudinal slot 5 is cut therein for a purpose tobe described. A spiral groove o' is cut on the lower end of the bolsterto `receive the coils at the upper end of a spiral spring 7, the coilstightly gripping the bolster and permitting the latter to be screwedthereinto, but preventing its rotation in the reverse direction. Aspindle-step S is loosely inserted within the lower end of the springand attached thereto by inserting the inturned extremity 9 of the springinto a transverse hole 10 in the step. The foot 11 of the step isenlarged and recessed transversely at 12 with a notch 13 in the lowerpart at right angles to the recess, (see Fig. 1,) the foot of the stepbeing recessed and notched to cooperate with a pin 14, (see Figs. 1 and11,) projecting inward from the side wall of the bolster-case near itsbottom for a purpose to be described.

A suspension connection for the bolster is shown as aninternally-threaded collar 15, adapted to receive with a rather looselit the threaded portion i of the bolster, the collar having dependinglockingdugs 16, Figs. l, Q, and 3, to enter the notches b when thecollar is seated on the top of the part b of the bolster-case, as inFig. 1. The bolster is thus suspended within the bolster-case, andrelative rotation of the bolster and collar will effect verticaladjustment of the bolster.

- bolster.

In order to prevent rotation of the bolster in the suspensionconnection, the latter is provided with a notch 17 to receive adepending lug 18 on a locking-washer 19, adapted to rest upon the collar15, the lug being inturned to also enter the slot 5 in the bolster, asshown in Fig. 3. By this arrangement the bolster and the suspensionconnection 15 are locked together, and the lugs 16 lock all fromrotation in the bolster-case.

To assemble the parts, the locking-washer is removed and the bolster isturned inthe connection 15 suiciently to permit the recess 12 in thefoot of the spindle-step to receive the pin 14 when the bolster andconnected step are pushed down into the bolster-case.

In Fig. 4 the foot of the step is shown as about to pass down to itslowest position, the notch 13 permitting the lower part of the foot topass below the pin 14. The bolster and step are then turned bodilythrough onequarter of a revolution, so that the pin 14 will lie withinthe recess 12 and across or at right angles to the notch 13, therebyholding the step from further rotation. The spring 7 is now stretched orput Linder tension by screwing the suspension connection 15 down uponthe bolster, thereby raising the latter until the position of thebolster with relation to the step has determined a proper lit of theblade in the When the desired fit is secured, the lugs 16 are droppedinto the locking-notches Z2 and the locking-washer 19 is applied,locking the bolster and connection from rotation. If now it is foundnecessary to increase the spring tension, it is attained by rotating thebolster and connection 15 while they are locked together, for therebythe spiral groove 6 of the bolster is screwed farther into the spring 7stretching it accordingly as its lower end is held by the spindle-steplocked in the bottom of the bolster-case.

It will be manifest that there can be no leal;- age of oil from thebottom of the bolster-case, as the latter is closed.

The adjustment of the parts either to vary the fit of the spindle-pintlein the bolster or to increase the tension of the spring must obviouslybe effected when the spindle is removed from the bolster.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a spindle-bearing, in combination, a bolster-case, a bolstertherein having a tapering bore to receive the pintle of the spindle,

va spring under tension attached to and controlling the bolster, meansto vertically move the bolster to vary the tit of the spindle-pintletherein, and separate means to adjust the tension of the spring.

2. In a spindle-bearing, in combination, a bolster-case, a bolstertherein having a tapering bore to receive the pintle of the spindle,

l a suspension connection between the bolster and bolster-case, thebolster being longitudinally movable relatively to said connection tochange the lit of the spindle-pintle, and means independent of thebolster-case to lock the bolster and suspension connection together andprevent relative movement thereof.

3. In a spindle-bearing, in combination, a bolster-case, a bolstertherein having a tapering bore to receive the pintle of the spindle, aspring und er tension connected with the lower end of and controllingthe bolster, means to adjust the tension of the spring by or throughrotation of the bolster relatively to the spring, and separate means tovertically adjust the bolster to change the lit of the spindle-pintletherein.

4. In a spindle-bearing, in combination, a bolster-case, a bolstertherein having' a tapering bore to receive the pintle of the spindle, aspring under tension connected with the lower end ot' and controllingthe bolster, a suspension connection between the latter and thebolster-case, simultaneous rotation of the bolster and connectionadjusting the tension of the spring, relative rotation of said partsvertically adjusting the bolster to change the iit of the spindle-pintletherein, and a device to lock the bolster and suspension connectiontogether.

5. In a spindle-bearing, in combination, a bolster-case, a bolstertherein having atapering bore to receive the pintle of the spindle, andexternally threaded at its upper end, an internally-tln'eaded suspensionconnection to cooperate with the threaded portion of the bolster andmaintain the latter suspended within the bolster-case, means to locksaid connection on the bolster-case, a spring under tension connectedwith the lower end of the bolster, and means to xedly hold the other endof said spring, rotation of the bolster relatively to the springincreasing the tension Ithereof.

6. In a spindle-bearing, in combination, a vertically-adjustable bolsterhaving a tapering bore to receive the pintle of the spindle, a springunder tension connected with the bolster, and means to adjust thetension of the spring by or through rotation of the bolster relativelythereto.

7. In a spindle-bearing, in combination, a bolster-case, avertically-adjustable bolster su spended therein, a spring under tensionconnected with and controlling the bolster, and means located at the topof the bolster-case to effect vertical adjustment of the bolster.

8. In a spindle-bearing, in combination, a bolster-case, avertically-adjustable bolster suspended therein, a spring under tensionconnected with and controlling the bolster, and separate means locatedat the top of the bolster-case to effect vertical adjustment of thebolster and change the tension of the spring respectively.

9. In a spindle-bearing, in combination, a

IOO

IIO

bolster-case, a bolster having a tapering bore located within andvertically adjustable relatively to the bolster-case, a springadjustably connected with the lowerl end of the bolster, means to iXedlyhold the 4lower end of the spring in the bottom of the bolster-case, andmeans at the top of the latter to effect vertical adjustment of thebolster and change the ten` sion of the spring.

10. In a spindle-bearing, a bolster having a tapering bore to receivethe pintle of the spindle, and having an external spiral groove on itslower end, a spiral spring coperating at one end with said groove, and aspindlestep having a transverse recess in its foot, fiXedly connectedwith the other end of the spring.

11. In a spindle-bearing, a bolster having a tapering bore to receivethe pintle of the spindle, a spindle-step, a spring iiXedly attached atone end thereto, and means to adjustably connect the other end of thespring and the lower end of the bolster, combined with a bolster-casehaving a locking-pin in its lower end, to coperate with the step andlock it from movement, and a suspension connection between the upper endof the bolster and the bolster-ease.

12. In a spindle-bearing, a bolster-case, a bolster therein having atapering bore, a suspension connection between the upper end of thebolster and the bolster-case, relative rotation of the bolster andconnection eiecting vertical adjustment of the bolster, a spring undertension connected with the lower end of the bolster, a locking device tocoperate with the bolster and the connection and prevent their relativerotation, simultaneous rotation of said parts increasing the tension ofthe spring, and separable means to iixedly hold the lower end of thespring in the bottom of the bolster-case.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE OTIS DRAPER Witnesses:

JOHN C. EDWARDS, MABEL PARTELow.

